Physicochemical Properties of Peptide



PPepDB ID:PPepDB_3583
Number of amino acids:12
Molecular Weight:1309.49 Da
Theoretical pI:8.59


Amino Acid Composition:


Amino acidAmino acid countAmino acid percentage
Alanine ALA (A)00%
Cysteine CYS (C)00%
Glutamic Acid GLU (E)00%
Aspartic Acid ASP (D)216.67%
Glycine GLY (G)216.67%
Phynylalanine PHE (F)00%
Isoleucine ILE (I)18.33%
Histidine HIS (H)00%
Lysine LYS (K)216.67%
Methionine MET (M)00%
Leucine LEU (L)18.33%
Asparagine ASN (N)18.33%
Glutamine GLN (Q)00%
Proline PRO (P)216.67%
Serine SER (S)00%
Arginine ARG (R)18.33%
Threonine THR (T)00%
Tryptophan TRP (W)00%
Valine VAL (V)00%
Tyrosine TYR (Y)00%


Atomic Composition:


ElementElement's AbbreviationCount
CarbonC56
HydrogenH96
NitrogenN18
OxygenO18
SulphurS0

FormulaC56H96N18O18S0
Total Number of Atoms:188


Total number of positively charged residues (ARG + LYS):3
Total number of negatively charged residues (ASP + GLU):2
Extinction Coefficient:As there are no Tryptophan, Tyrosine or Cysteine in the region considered, your protein should not be visible by UV spectrophotometry.
Aromaticity:0.000

Aromaticity is the calculated relative frequency of Phe+Trp+Tyr
Instability Index:The computed Instability Index (II) is : 70.81

This indicates that the protein/peptide is unstable
Secondary Structure Fraction [Helix, Turn, Sheet]:[16.67, 41.67, 8.33]

Amino acids in helix: V, I, Y, F, W, L || Amino acids in turn: N, P, G, S || Amino acids in sheet: E, M, A, L
Aliphatic index:65
Grand average of hydropathicity (GRAVY):-1.54